Terminologija parametrov PTC termistorja
Heating & Temperature Control and PTC Thermistor Parameter Terminology for Overcurrent Protection
Heating & Temperature Control and PTC Thermistor Parameter Terminology for Overcurrent Protection
When selecting a thermistor, it is indeed necessary to comprehensively consider many key parameters and packaging (epoxy resin Encapsulation, Glass Bead Encapsulation, thin film Encapsulation, SMD Encapsulation, stainless steel probe sensor Encapsulation, injection molding coating). Let me tell you in detail:
The resistance range of thermistors is wide, and the resistance of NTC thermistors can range from tens of ohms to ten thousand ohms, and even special devices can be customized according to needs. Commonly used resistance values are 2.5Ω, 5Oh, 10Oh, itd., and common resistance errors are ±15%, ±20%, ±30%, itd. The resistance range of PTC thermistors is usually from 1KΩ to hundreds of KΩ.
Reasonable arrangement of temperature sensors: The location and arrangement of temperature sensors will also affect the response time. If the contact area between the sensor and the object being measured is large, the heat exchange will be faster and the response time will naturally be shorter. Vendar, please note that too large a contact area may also lead to increased measurement errors, so we have to make a trade-off based on the actual situation.
As a component that can change the resistance value according to temperature changes, thermistors have a wide range of applications (such as temperature measurement, temperature control, temperature compensation, temperature alarm, battery thermal protection). Let me share with you several application cases of thermistors:
The connection method of the NTC thermistor temperature sensor needs to be determined according to the actual application scenario and measurement requirements. During the wiring process, be sure to pay attention to the pin polarity, wire selection, temperature range, filtering and decoupling, grounding treatment, and verification and calibration to ensure the accuracy and reliability of the measurement.
Kaj so termistorji NTC in PTC?
NTC in PTC sta oba termistorja, ki so posebni upori, ki lahko spreminjajo upor s temperaturo. Lahko rečemo tudi, da so neke vrste senzorji.
Q: Ali lahko bolj podrobno razložite ločljivost občutljivosti?? Zakaj so višje vrednosti boljše?
A: Visoka občutljivost odpravlja kakršen koli upor svinca. Prav tako poenostavlja podporno elektroniko. A 10,000 ohmski termistor spremeni upornost za 4.4% oz 440 ohmov za spremembo temperature za 1 °C. A 100 ohm platinasti senzor spremeni upornost za 1/3 ohm za spremembo temperature za 1 °C.
Osnovne tehnologije senzorskih sond in kompletov kablov za merjenje temperature vključujejo zaznavanje temperature, prenos signala in obdelava podatkov. Strokovnjak za pridobivanje temperature YAXUN uporablja visoko natančne termistorje Shibaura NTC za snope senzorjev za zaznavanje temperature, vključno z materiali za zaznavanje, tehnologija obdelave signalov, celostno oblikovanje in prihodnji razvojni trendi.